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transparency between windows

Posted on 2001-07-25
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Last Modified: 2012-08-13
Hi,
I'm writing an application, that should
show a live video (from pc camera) on one window,
and another window with some control on it,
should appears below it.

I'm using 'IVideoWindow' Interface from DirectShow.
This window should be semi transparent.

I think that the AlphaBlend() SDK should do that work,
but I couldn't find how to connect it with IVideoWindow.


* The use of IVideoWindow is not mandatory

Waiting for advises

Thanks
Ran
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Question by:ran100
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5 Comments
 

Author Comment

by:ran100
ID: 6318028
Few more details:

* OS Win2000
* DirectX 7
* Code in C++
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Expert Comment

by:Black_End
ID: 6318051
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Author Comment

by:ran100
ID: 6319371
That was fast ...
Thanks

I Load the sample project to VC6,
And I get a linker error LNK2001,
About the sdk SetLayereWindowAttributes(..).
I add the library user32.lib to the setting of the project, but nothing changed.

Any idea ?

Ran
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Accepted Solution

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Black_End earned 1200 total points
ID: 6321225
You need to use the latest lib from the platform SDK, the libs that comes with MSDEV are pre win2000 and will not know knowthing about SetLayereWindowAttributes
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Author Comment

by:ran100
ID: 6321278
You right.
I don't have the last SDK so, I load the DLL.

There is also more information at http://www.codeproject.com/w2k/win2k_transparent.asp

Thanks a lot

Ran
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